North America × Tax & Compliance Software

Tax & Compliance Software in North America

13 tax & compliance software providers across North America, publishing 19 APIs.

13 providers 19 published APIs 19 indexed documents

Tax & Compliance Software across North America — 13 providers on the APIs.io network sit in both cohorts, and between them they publish 19 indexed APIs.

4 of the 13 publish at least one machine-readable API; 9 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.

By Kin Score band: 7 emerging, 5 minimal, and 1 developing.

Leading by rating: OptionsAhoy, IRS, Wealthsimple, IVIX, Fifteenth, BossTax, and 7 more.

Region membership is derived from three explicit signals — a provider tag, a provider-name pattern, or a stated headquarters in the provider’s own description. This is a map of stated headquarters, not of markets served.

Providers (13)

Provider Description APIs Rating
OptionsAhoy AlphaLatitude Inc. is a Sunnyvale, California C-corporation (founded March 2026) that builds OptionsAhoy, an equity-compensation optimization product for individual investors: m... 11 developing
IRS The US Internal Revenue Service (IRS) provides REST APIs and Application-to-Application (A2A) interfaces for tax information access, identity verification, income verification, ... 5 emerging
Wealthsimple Wealthsimple is a Toronto-based Canadian financial technology company, founded in 2014, offering a full suite of consumer financial products: managed investing (Invest), self-di... 0 emerging
IVIX IVIX is an AI-powered financial-intelligence platform that analyzes publicly available data at scale to surface hidden and unreported business activity, helping government tax a... 0 emerging
Fifteenth Fifteenth is a San Francisco-based fintech company operating an AI-powered personal tax platform for ambitious earners — founders, investors, executives, and technology professi... 0 emerging
BossTax BossTax is a mobile bookkeeping and tax-filing app for 1099 workers, freelancers, and independent contractors. Founded in 2022 and based in Stamford, Connecticut, BossTax lets s... 0 emerging
Heard Heard (Heard Technologies, Inc.) is the financial management platform built specifically for therapists and wellness practitioners in private practice. Founded in 2019 and based... 0 emerging
Internal Revenue Service The Internal Revenue Service (IRS) is the United States federal tax collection agency and a bureau of the Department of the Treasury. The IRS publishes developer resources for t... 2 emerging
Duane Morris Duane Morris LLP is a Philadelphia-headquartered, full-service U.S. and international law firm founded in 1904 by Russell Duane, Steven Heckscher, and Roland S. Morris. Chaired ... 0 minimal
Blank Rome Blank Rome LLP is an Am Law 100 U.S. law firm founded in 1946 and headquartered in Philadelphia, with approximately 600+ attorneys across roughly 14 U.S. offices plus an interna... 1 minimal
Carr, Riggs & Ingram (CRI) Carr, Riggs & Ingram (CRI) is a top-25 nationally ranked accounting and advisory firm headquartered in Alabama, operating 70+ locations across 13 states plus Mexico. The firm de... 0 minimal
Ballard Spahr Ballard Spahr LLP is a national U.S. law firm founded in 1885 and headquartered in Philadelphia. Following its January 1, 2025 combination with Seattle-based Lane Powell, the fi... 0 minimal
Dechert Dechert LLP is a global law firm founded in 1875 and headquartered in Philadelphia, Pennsylvania, with "more than 900 lawyers" across 22 offices in the United States, Europe, th... 0 minimal

Indexed API documents (19)

Two numbers, both real: these providers publish 19 APIs as their own documents, which the catalog indexes split one-per-resource into 19 documents.

OptionsAhoy MCP Server

OptionsAhoy
Remote Model Context Protocol server at https://optionsahoy.com/mcp (Streamable HTTP, protocol version 2024-11-05, serverInfo OptionsAhoy...

OptionsAhoy Equity Planner (A2A Agent)

OptionsAhoy
Agent2Agent (A2A) protocol surface: an agent card served from https://optionsahoy.com/.well-known/agent-card.json (protocolVersion 0.3.0,...

OptionsAhoy Concentration API

OptionsAhoy
Single-stock concentration risk

OptionsAhoy Discovery API

OptionsAhoy
API inventory

OptionsAhoy Equity Funding API

OptionsAhoy
Goal-funded equity-to-cash liquidation planning

OptionsAhoy Hedging API

OptionsAhoy
Protective put, collar, and put spread pricing

OptionsAhoy ISO API

OptionsAhoy
Incentive stock options

OptionsAhoy NSO API

OptionsAhoy
Non-qualified stock options

OptionsAhoy QSBS API

OptionsAhoy
Section 1202 qualification

OptionsAhoy RSU API

OptionsAhoy
Restricted stock units

OptionsAhoy Rsu Lot Optimize API

OptionsAhoy
The RsuLotOptimize API from OptionsAhoy — 1 operation(s) for rsulotoptimize.

IRS TIN Matching API

IRS
Allows payers to submit Taxpayer Identification Number (TIN) and name combinations to be matched against IRS records before filing inform...

IRS Income Verification Express Service (IVES) API

IRS
Application-to-Application (A2A) API allowing authorized participants such as lenders, banks, credit unions, and financial institutions t...

IRS Information Return Intake System (IRIS) API

IRS
Application-to-Application (A2A) API for electronic filing of 1099 series information returns directly with the IRS. Supports high-volume...

IRS Modernized e-File (MeF) API

IRS
Application-to-Application (A2A) system enabling authorized software developers and transmitters to electronically submit tax returns dir...

IRS Transcript Delivery System (TDS) API

IRS
e-Services API allowing authorized tax professionals and institutions to retrieve tax transcripts programmatically. Part of the IRS e-Ser...

IRS Modernized e-File (MeF)

Internal Revenue Service
The IRS Modernized e-File (MeF) system is the web-based electronic filing platform supporting individual, business, and tax-exempt return...

IRS e-Services

Internal Revenue Service
IRS e-Services is a suite of web-based products for tax professionals, reporting agents, and authorized e-file providers offering Transcr...

Blank Rome Public Website

Blank Rome
The Blank Rome public website at blankrome.com is the firm's primary external knowledge surface, organizing attorney biographies, practic...

Other industries in North America

Artificial Intelligence 603 Healthcare 381 Biotechnology & Drug Discovery 314 Government & Public Sector 314 Digital Health & Telehealth 306 Life Sciences 268 Financial Services 264 Data & Analytics 197 Cybersecurity & Identity 189 Climate & Sustainability 185 Marketing & Advertising 181 Pharmaceutical 179 All of North America →

Tax & Compliance Software elsewhere

Europe 16 Latin America 9 United Kingdom & Ireland 6 DACH (Germany · Austria · Switzerland) 3 Australia & New Zealand 2 Benelux 2 India & South Asia 2 Nordics 2 Africa 1 Central & Eastern Europe 1 France & Iberia 1 Japan & Korea 1 All of Tax & Compliance Software →

This page is the intersection of two independently computed cohorts: North America and Tax & Compliance Software. A provider appears here only when it is already a member of both. North America membership is matched on tag, name pattern, stated HQ, so this is a floor rather than a census — coverage gaps show up here as small numbers, not as absent pages.

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Tools for regions

6 MCP tools reach this
  • find_regionsBrowse and filter every region in the catalog.
  • get_region_leadersPRO — top-rated providers in this region.
  • cohort_statsPRO — the distribution across the region.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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